Hello there! 
I'm fairly new to Houdini and brand new here in the forums. I'm trying to create a Star Wars like "jump to lightspeed" setup in Houdini. 
So far I'm almost done, but now I'm struggling with the look of the splines. I like the look of the tube (Splines and then Polywire node), I just wish there was somehting like a sphere at the end, or rather a sphere as a cap. Is there an easy way to attach something to the endings of the tube/spline? 
Of course i tried the Cap Node, but I can't make it work... 
 
Here's a quick render and the file: 
 
 
 
  
 
hyperjump.hip